Can. 1244 §1. It is only for the supreme
ecclesiastical authority to establish, transfer, and suppress feast days and
days of penance common to the universal Church, without prejudice to the
prescript of ⇒ can. 1246, §2.

§2. Diocesan bishops can decree special feast days
or days of penance for their dioceses or places, but only in individual
instances.

Can. 1245 Without prejudice to the right of
diocesan bishops mentioned in ⇒ can. 87, for a just cause
and according to the prescripts of the diocesan bishop, a pastor can grant in
individual cases a dispensation from the obligation of observing a feast day or
a day of penance or can grant a commutation of the obligation into other pious
works. A superior of a religious institute or society of apostolic life, if
they are clerical and of pontifical right, can also do this in regard to his
own subjects and others living in the house day and night.